Company lists · Data refreshed September 2026

Top 25 International development ngos worldwide

RevenueBase identified 8,119 international development ngos worldwide as of September 2026 and tracks 205,498 professional contacts across them, including 39,845 with verified work emails. India is the largest market and New Delhi the largest hub.

This list covers international development ngos worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026. Country and city lists for international development ngos follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
8,119Companies
205,498Contacts tracked
39,845Verified emails
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The 25 largest international development ngos worldwide

Ranked by team size
Top 25 of 8,119 international development ngos worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to international development ngos: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 20, 20265,001-10,0008,336 contacts →

Indirect evidence

“CARE is a leading humanitarian global organization.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidencePortland, OR, United StatesHQ checked Sep 20, 20261,001-5,0006,863 contacts →

Indirect evidence

“The world is more fragile than ever.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceBaltimore, MD, United StatesHQ checked Sep 20, 20261,001-5,0004,538 contacts →

Indirect evidence

“Jhpiego is a nonprofit global leader in the creation and delivery of transformative health care solutions for the developing world.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 20, 20265,001-10,0004,409 contacts →

Partial evidence

International Medical Corps is a global first responder that delivers emergency medical and related services to those affected by conflict, disaster and disease, no matter where…”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceDublin 2, IrelandHQ checked Sep 20, 20261,001-5,0002,987 contacts →

Partial evidence

“Concern Worldwide is an international humanitarian organisation dedicated to tackling poverty and suffering in the world’s poorest countries.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceNavi Mumbai, IndiaHQ checked Sep 20, 20261,001-5,0002,531 contacts →

Indirect evidence

“Founded in by Matthew Spacie, Magic Bus is building a world where young people break out of poverty to lead fulfilling, rewarding lives and contribute positively to their…”

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceThe Hague, NetherlandsHQ checked Sep 20, 20261,001-5,0002,374 contacts →

Partial evidence

“SNV is a global development partner, deeply rooted in the countries where we operate.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceArlington, VA, United StatesHQ checked Sep 20, 20261,001-5,0002,227 contacts →

Indirect evidence

“TechnoServe works with enterprising people in the developing world to build competitive farms, businesses, and industries.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceBoston, MA, United StatesHQ checked Sep 20, 20261,001-5,0002,213 contacts →

Indirect evidence

“CHAI's mission is to save lives and improve health outcomes in low- and middle-income countries by enabling the government and private sector to strengthen and sustain quality…”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceLondon, South AfricaHQ checked Sep 20, 2026501-1,0002,143 contacts →

Indirect evidence

“Founded in 1972, ActionAid has been fighting poverty worldwide for over 30 years.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceBrussels, BelgiumHQ checked Sep 20, 20261,001-5,0001,930 contacts →

Partial evidence

“Enabel is the Belgian agency for international cooperation.”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidencePhoenix, AZ, United StatesHQ checked Sep 20, 20261,001-5,0001,737 contacts →

Partial evidence

“Food for the Hungry is a Christian humanitarian organization ending all forms of human poverty by providing life-changing development programs, disaster relief, and advocacy.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceBoston, MA, United StatesHQ checked Sep 20, 202610001+1,696 contacts →

Indirect evidence

“Partners In Health (PIH) is a non-profit, global health organization that fights social injustice by bringing the benefits of modern medical science first and foremost to the most…”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidencePrague, Czech RepublicHQ checked Sep 20, 20261,001-5,0001,604 contacts →

Indirect evidence

“We are a non-governmental, non-profit organisation based on the ideas of humanism, freedom, equality and solidarity.”

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceZurich, SwitzerlandHQ checked Sep 20, 20261,001-5,0001,392 contacts →

Partial evidence

“Swisscontact – Swiss Foundation for Technical Cooperation – is an independent non-profit development organisation established in 1959 by representatives of the Swiss private…”

Source: RevenueBase Database · checked Sep 20, 2026
16Strong evidenceHamburg, GermanyHQ checked Sep 20, 20261,001-5,0001,382 contacts →

Strong evidence

“GFA Consulting Group is one of Europe's leading consulting firms in the field of international development cooperation.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceNairobi, KenyaHQ checked Sep 20, 20261,001-5,0001,363 contacts →

Partial evidence

“Amref Health Africa, headquartered in Kenya is the largest Africa-based international non-governmental organisation (NGO) currently running programmes in over 35 countries in…”

Source: RevenueBase Database · checked Sep 20, 2026
18Strong evidenceWashington, DC, United StatesHQ checked Sep 20, 2026501-1,0001,336 contacts →

Strong evidence

“Pact is an international nonprofit that works across the world building solutions for human development that are evidence-based, data-driven, and owned by the communities we serve.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceAbuja, NigeriaHQ checked Sep 20, 20261,001-5,0001,323 contacts →

Indirect evidence

“Society for Family Health (SFH) is a non profit, non-political, non-governmental organisation which has interventions in various health fields, including child survival, malaria…”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceBethesda, MD, United StatesHQ checked Sep 20, 20261,001-5,0001,225 contacts →

Indirect evidence

“At Global Communities, we know lasting change starts locally.”

Source: RevenueBase Database · checked Sep 20, 2026
21Strong evidenceKansas City, MO, United StatesHQ checked Sep 20, 2026201-5001,192 contacts →

Strong evidence

“Children International is a top-rated global nonprofit that delivers child and youth development programming to break the cycle of generational poverty.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceLittle Rock, AR, United StatesHQ checked Sep 20, 2026201-5001,166 contacts →

Indirect evidence

“Winrock is a recognized leader in U.S.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceNew Delhi, IndiaHQ checked Sep 20, 20261,001-5,0001,159 contacts →

Indirect evidence

“CARE has been working in India for over 70 years, focusing on ending poverty and social injustice.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceBrazilHQ checked Sep 20, 20261,001-5,000979 contacts →

Indirect evidence

“Objetivo geral Contribuir para o desenvolvimento sócio-econômico e cultural de comunidades rurais visando a auto-sustentabilidade, ao exercício da cidadania e a potencialização da…”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceNew Delhi, IndiaHQ checked Sep 20, 2026n/a955 contacts →

Partial evidence

“Praxis is a not–for–profit NGO specialising in participatory approaches to sustainable development.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 8,119 international development ngos worldwide

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International development ngos worldwide at a glance

As of Sep 20, 2026
19.4%Verified-email coverage
25.3Average contacts per company
11-50Median size (employees)
2.0%Largest-city concentration · New Delhi
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
3,615
11-50
2,661
51-200
1,073
201-500
393
501-1,000
173
1,001-5,000
111
5,001-10,000
28
10001+
46

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among international development ngos, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for international development ngos are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “international development ngos”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names international development ngos), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among international development ngos, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 39,845 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

International development ngos by location

39 lists · largest first

Every International development ngos list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names international development ngos, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many international development ngos are there worldwide?

RevenueBase identified 8,119 international development ngos worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

CARE, headquartered in Atlanta, tops this list with the largest team on record.

Which country has the most international development ngos?

India leads with 1,274 companies, followed by the United States (919) and Nigeria (487). Every international development ngos list by country and city is linked on this page.

Which city has the most international development ngos?

New Delhi leads with 161 headquartered companies, followed by London (133) and Nairobi (126).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 39,845 verified decision-maker contacts tracked across these 8,119 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.